diff options
Diffstat (limited to 'drivers/rtc/rtc-tx4939.c')
| -rw-r--r-- | drivers/rtc/rtc-tx4939.c | 40 |
1 files changed, 11 insertions, 29 deletions
diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index ec6313d1535..2e678c681b1 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -11,6 +11,7 @@ #include <linux/rtc.h> #include <linux/platform_device.h> #include <linux/interrupt.h> +#include <linux/module.h> #include <linux/io.h> #include <linux/gfp.h> #include <asm/txx9/tx4939.h> @@ -175,8 +176,8 @@ static irqreturn_t tx4939_rtc_interrupt(int irq, void *dev_id) tx4939_rtc_cmd(rtcreg, TX4939_RTCCTL_COMMAND_NOP); } spin_unlock(&pdata->lock); - if (likely(pdata->rtc)) - rtc_update_irq(pdata->rtc, 1, events); + rtc_update_irq(pdata->rtc, 1, events); + return IRQ_HANDLED; } @@ -243,9 +244,6 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) struct resource *res; int irq, ret; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; irq = platform_get_irq(pdev, 0); if (irq < 0) return -ENODEV; @@ -254,27 +252,23 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) return -ENOMEM; platform_set_drvdata(pdev, pdata); - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name)) - return -EBUSY; - pdata->rtcreg = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!pdata->rtcreg) - return -EBUSY; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + pdata->rtcreg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pdata->rtcreg)) + return PTR_ERR(pdata->rtcreg); spin_lock_init(&pdata->lock); tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP); if (devm_request_irq(&pdev->dev, irq, tx4939_rtc_interrupt, - IRQF_DISABLED, pdev->name, &pdev->dev) < 0) + 0, pdev->name, &pdev->dev) < 0) return -EBUSY; - rtc = rtc_device_register(pdev->name, &pdev->dev, + rtc = devm_rtc_device_register(&pdev->dev, pdev->name, &tx4939_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); pdata->rtc = rtc; ret = sysfs_create_bin_file(&pdev->dev.kobj, &tx4939_rtc_nvram_attr); - if (ret) - rtc_device_unregister(rtc); + return ret; } @@ -283,7 +277,6 @@ static int __exit tx4939_rtc_remove(struct platform_device *pdev) struct tx4939rtc_plat_data *pdata = platform_get_drvdata(pdev); sysfs_remove_bin_file(&pdev->dev.kobj, &tx4939_rtc_nvram_attr); - rtc_device_unregister(pdata->rtc); spin_lock_irq(&pdata->lock); tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP); spin_unlock_irq(&pdata->lock); @@ -298,18 +291,7 @@ static struct platform_driver tx4939_rtc_driver = { }, }; -static int __init tx4939rtc_init(void) -{ - return platform_driver_probe(&tx4939_rtc_driver, tx4939_rtc_probe); -} - -static void __exit tx4939rtc_exit(void) -{ - platform_driver_unregister(&tx4939_rtc_driver); -} - -module_init(tx4939rtc_init); -module_exit(tx4939rtc_exit); +module_platform_driver_probe(tx4939_rtc_driver, tx4939_rtc_probe); MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>"); MODULE_DESCRIPTION("TX4939 internal RTC driver"); |